package com.netcracker.ui.command;

import com.netcracker.entity.Genre;
import com.netcracker.util.service.ServiceFacade;
import com.netcracker.util.service.exception.DataTransmittingException;
import com.netcracker.util.service.exception.NullDataException;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.LoggerFactory;

public class NewGenreCommand implements Command {
    private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(NewGenreCommand.class);
    private final ServiceFacade serviceFacade;

        public NewGenreCommand(ServiceFacade serviceFacade) {
        this.serviceFacade = serviceFacade;
    }
        @Override
        public String execute(HttpServletRequest request, HttpServletResponse response) {
            List<Genre> genres = null;
            try {
                genres = serviceFacade.getGenreService().getAllGenres();
            } catch (DataTransmittingException ex) {
                request.setAttribute("error", "Ошибка обращения к БД.");
                LOGGER.error("DB error: ", ex);
            } catch (NullDataException ex) {
                request.setAttribute("error", "Жанров не найдено.");
            }
            request.setAttribute("genres", genres);
            return "AdminGenres.jsp";
        }
}
